Was LKSW leather the default for M5's back then? Mine has active seats, I saw another one with only air vented seats.

I wish mine has HUD

Yes, extended leather was standard. The other two choice for which you had to pay were, complete leather and perforated complete leather.
Interestingly, Alcantara headliner was only available with a complete leather interior in the US, I guess in Canada it was a standalone option.